OutBack Power EnergyCell OPzV Owner's manual

Brand: OutBack Power

Model: EnergyCell OPzV

Type: Owner's manual

OutBack Power EnergyCell OPzV is suitable for use in a wide range of applications, including:

Renewable energy systems
Uninterruptible power supplies (UPS)
Off-grid systems
Telecom systems
Industrial applications

The EnergyCell OPzV is a durable and reliable battery that can provide years of service. It is backed by a 10-year warranty.

OutBack Power EnergyCell OPzV is suitable for use in a wide range of applications, including:

Renewable energy systems
Uninterruptible power supplies (UPS)
Off-grid systems
Telecom systems
Industrial applications

The EnergyCell OPzV is a durable and reliable battery that can provide years of service. It is backed by a 10-year warranty.

EnergyCell OPzV

Batteries

User’s Manual

About OutBack Power Technologies

OutBack Power Technologies is a leader in advanced energy conversion technology. Our products include true sine

wave inverters/chargers, maximum power point tracking charge controllers, and system communication components,

as well as circuit breakers, accessories, and assembled systems.

Contact Information

Disclaimer

UNLESS SPECIFICALLY AGREED TO IN WRITING, OUTBACK POWER TECHNOLOGIES:

(a) MAKES NO WARRANTY AS TO THE ACCURACY, SUFFICIENCY OR SUITABILITY OF ANY TECHNICAL OR OTHER

INFORMATION PROVIDED IN ITS MANUALS OR OTHER DOCUMENTATION.

(b) ASSUMES NO RESPONSIBILITY OR LIABILITY FOR LOSS OR DAMAGE, WHETHER DIRECT, INDIRECT, CONSEQUENTIAL

OR INCIDENTAL, WHICH MIGHT ARISE OUT OF THE USE OF SUCH INFORMATION. THE USE OF ANY SUCH INFORMATION

WILL BE ENTIRELY AT THE USER’S RISK.

Notice of Copyright

Trademark

OutBack Power and the OutBack Power logo are trademarks owned and used by OutBack Power Technologies, Inc.

The ALPHA logo and phrase “member of the Alpha Group” are trademarks owned and used by Alpha Technologies Inc.

These trademarks may be registered in the United States and other countries.

Date and Revision

August 2015, Revision A

Part Number

181-411-B0-001, Rev. A (08/2015)

Corporate Headquarters

17825 - 59th Avenue N.E.

Suite B

Arlington, WA 98223 USA

+1.360.435.6030

+1.360.618.4363 (Technical Support)

+1.360.435.6019 (Fax)

Support@outbackpower.com

http://www.outbackpower.com

Address:

Telephone:

Email:

Website:

European Oce

Hansastrasse 8

D-91126

Schwabach, Germany

+49.9122.79889.0

+49.9122.79889.21 (Fax)

Table of Contents

Important Safety Instructions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Additional Resources. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Delivery and Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Receiving Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Unpacking and Handling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Room and Installation Design . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Racks and Mechanical Stability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Cells in Parallel Strings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Preliminary Inspection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Electrical Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Instrumentation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Charging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Commissioning Charge. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Full Charge. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Equalizing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10

Normal Operation Charging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11

Discharging. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12

Overdischarge Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12

Low-voltage Reconnect for Stand-Alone Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12

Temperature Limits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13

Current Limits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13

Ripple Currents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13

Battery Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14

Faults . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15

Testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15

Taking Out of Operation / Storage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15

Transport . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15

Performance Curves. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16

Technical Specications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20

Tables

Table 1, Case 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Table 2, Case 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Table 3, Case 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10

Table 4, Battery State Deviation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10

Table 5, Settings for Stand-Alone Systems. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11

Table 6, Functional Equalizing Frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11

Table 7, Minimum Safe Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13

Table 8, Performance Data - Discharge Constant Current at 20°C (Amperes) . . . . . . . . . . . . . . . . . . . . .20

Table 8, Performance Data - Discharge Constant Current at 20°C (Amperes), Continued . . . . . . . . . . . . .21

Table 9, Performance Data - Discharge Constant Power at 20°C (Watts/cell) . . . . . . . . . . . . . . . . . . . . .22

Table 9, Performance Data - Discharge Constant Power at 20°C (Watts/cell), Continued. . . . . . . . . . . . . .23

Figures

Figure 1, Expected Number of Cycles vs Depth of Discharge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16

Figure 2, Guidance for the Initial Low-Voltage Disconnect Settings (25°C Reference Temperature) . . . . . .17

Figure 3, Self-Discharge Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18

Figure 4, EnergyCell OPzV Cycle Life . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19

Figure 5, EnergyCell OPzV Capacity vs. Temperature Chart (Rate = 120Hr/1.85VPC) . . . . . . . . . . . . . . . .19

Important Safety Information

181-411-B0-001, Rev. A (08/2015)

Important Safety Instructions

READ AND SAVE THESE INSTRUCTIONS!

This manual contains important safety instructions for the EnergyCell OPzV battery. These instructions are in addition to the safety

instructions published for use with all OutBack products. Read all instructions and cautionary markings on the EnergyCell OPzV

battery and on any accessories or additional equipment included in the installation. Failure to follow these instructions could

result in severe shock or possible electrocution. Use extreme caution at all times to prevent accidents.

Additional Resources

These references may be used when installing this equipment. Depending on the nature of the installation, it may be highly

recommended to consult these resources.

Institute of Electrical and Electronics Engineers (IEEE) guidelines: IEEE 450, IEEE 484, IEEE 1184, IEEE 1187, IEEE 1188, IEEE 1189,

IEEE 1491, IEEE 1578, IEEE 1635, and IEEE 1657 (various guidelines for design, installation, maintenance, monitoring, and safety of

battery systems)

» Some batteries can weigh in excess of 100lb (45kg). Use safe lifting techniques

when lifting this equipment as prescribed by the Occupational Safety and

Health Association (OSHA) or other local codes. Lifting machinery may be

recommended as necessary.

» Wear appropriate protective equipment when working with batteries, including

eye or face protection, acid-resistant gloves, an apron, and other items.

» Wash hands after any contact with the lead terminals or battery electrolyte.

» Ensure clearance requirements are strictly enforced around the batteries.

» Ensure the area around the batteries is well ventilated and clean of debris.

» Never smoke or allow a spark or ame near the batteries.

» Always use insulated tools. Avoid dropping tools onto batteries or other

electrical parts.

» Keep plenty of fresh water and soap nearby in case battery acid contacts skin,

clothing, or eyes.

» Wear complete eye and clothing protection when working with batteries.

Avoid touching bare skin or eyes while working near batteries.

» If battery acid contacts skin or clothing, wash immediately with soap and

water. If acid enters the eye, immediately ood it with running cold water for

at least 20 minutes and get medical attention as soon as possible.

» Never charge a frozen battery.

» Insulate batteries as appropriate against freezing temperatures. A discharged

battery will freeze more easily than a charged one.

» If a battery must be removed, always remove the grounded terminal from the

battery rst. Make sure all devices are de-energized or disconnected to avoid

causing a spark.

» Do not perform any servicing other than that specied in the installation

instructions unless qualied to do so.

WARNING: Personal Injury

WARNING: Explosion, Electrocution, or Fire Hazard

Delivery and Storage

181-411-B0-001, Rev. A (08/2015)

Delivery and Storage

Receiving Inspection

Inspect the shipment for missing components. Verify the contents with the packaging documents. Inspect each package or pallet

for integrity and electrolyte leakage. Record the receipt date and the inspection results, and notify OutBack Power of any damage.

Take photographs if necessary.

Storage

» Store the batteries in a dry, clean, cool, and well ventilated location. Do not expose the cells to direct sunlight as damage

to the container and cover may occur.

» Do not stack one pallet above the other. Avoid storing unpacked cells / monoblocs on sharp-edged supports.

» Storage on a pallet wrapped in plastic material is permitted except in rooms where the temperature uctuates

signicantly, or if high relative humidity can cause condensation under the plastic cover. With time, this condensation can

cause a whitish hydration on the poles and lead to high self-discharge by leakage current.

» Protect the batteries from any risk of electric shock resulting from short-circuiting by a conductive object or from a

building up of conductive dust.

» It is recommended to have the same storage conditions within a batch, pallet or room.

» As the batteries are supplied charged, storage time is limited. In order to easily charge the batteries after prolonged

storage, it is advised not to store them more than 6 months at 20°C, 4 months at 30°C, 2 months at 40°C. A refreshing

charge is needed after this period. Failure to observe these conditions may result in signicantly reduced capacity and

service life.

» Record dates and conditions for all charges during storage.

Unpacking and Handling

» Never lift cells by the terminal posts. Lifting cells with weight above 25kg has to be made with lifting belts. Never drag or

roll the battery.

» Do not apply force to the safety valve during handling.

» The batteries are fully charged before shipment. Do not short-circuit the batteries.

» Check for evidence of leakage. All cells with visible defects such as cracked jars, loose terminal posts, or other

unrecoverable problems shall be rejected.

Installation

181-411-B0-001, Rev. A (08/2015)

Installation

Room and Installation Design

» The battery should be installed in a clean, dry environment. Avoid placing the battery in a warm place or in direct

sunlight. The location or arrangement of cells should result in no greater than a 3°C temperature dierential between cells

within a series-connected string at a given time. Avoid conditions that result in spot heating or cooling, as temperature

variations will cause the battery to become electrically unbalanced.

» Ensure the installation allows adequate air ow around each cell or monobloc for better cooling. Keep 10mm distance

between cells or blocks.

» The layout of the room must allow easy access to the batteries.

» Provide adequate space and illumination for inspection, maintenance, testing, and cell/battery replacement. Space

should also be provided to allow for operation of lifting equipment and proper measurement (cell voltage and

temperature).

Racks and Mechanical Stability

EnergyCell OPzV battery racking is recommended for proper installation. Calculations should be made to ensure that oor loading

capabilities are not exceeded. Seismic forces must be considered when applicable. The installation should provide adequate

structural support and be as free of vibration as possible.

Cells in Parallel Strings

Valve-regulated cells may be connected in parallel to give higher current capability. In the case of parallel connected strings,

use batteries of the same capacity, design and age only with a maximum of 4 parallel strings. If more than 4 strings are required,

consult a technical support representative at OutBack Power. The resistance of the cables in each string must be the same. In

addition, each string should be equipped with disconnect capabilities for maintenance and safety purposes.

Preliminary Inspection

1. Check for evidence of leakage. All cells with visible defects such as cracked jars, loose terminal posts, or other

unrecoverable problems should be rejected.

2. Before installation, if the surface of the battery container is dirty, wash the container with soapy water.

3. Conduct Open Circuit Voltage (OCV) measurements on each individual cell or monobloc battery to verify their

compliance with the following variation and absolute voltage criteria:

» The OCV must not deviate from average more than ±0.025V for 2V cells.

» The OCV must not be lower than 2.05V for 2V cells.

4. Consult a technical support representative at OutBack Power if the battery compliance cannot be veried.

All aspects of the installation must be in accordance with the applicable rules and

governmental regulations of the local area.

Important:

Installation

181-411-B0-001, Rev. A (08/2015)

Electrical Connections

1. Ensure that the cells are wired with the correct polarity.

2. Verify that all contact surfaces are clean. If required, clean with a brass brush/pad. The inserts and connections can be

lightly lubricated with silicone grease.

3. Torque the terminal screws to 22Nm.

4. Electrical connections to the battery, as well as between cells on separate levels or racks, should be made to minimize

mechanical strain on battery terminal posts.

5. Check the battery’s total voltage. It should match the number of cells / monoblocs connected in series. If the

measurement is not as expected, recheck the connections for proper polarity. Batteries with a nominal voltage > 75V

require an EC conformity declaration in accordance with the low voltage directive (73/23/EEC), which conrms that the

CE marking is applied to the battery. The company installing the battery is responsible for the declaration and applying

the CE marking.

6. For future identication, apply individual cell/unit numbers in sequence starting from one end of the battery. Also apply

identication numbers for the parallel strings.

7. Connect the battery to the DC power supply, with the charger switched o, battery fuses removed and the load

disconnected, ensuring that the polarity is correct.

Instrumentation

For large installations, consider permanent instrumentation for measurements and alarm. These include voltmeter, amp-meter,

Ah counter, high and low voltage indicators, ground fault detector(s) and temperature sensor(s) for the battery and the ambient

air. For smaller installations use portable test equipment. The temperature sensors must be xed on the battery units (side wall or

negative pole).

For systems where the total battery voltage is measured at the controller, use oversized

cables to the battery in order to minimize the voltage drop.

Note:

Operation

181-411-B0-001, Rev. A (08/2015)

Operation

Charging

Commissioning Charge

The initial charge is critical to future battery operation and the battery’s service life. It is performed as a full charge (described in

the next section). Keep the records in the battery’s logbook.

Full Charge

The full charge is a prolonged charge at elevated voltage, performed under the supervision of the user. It lasts until certain full

charge criteria are fullled but not outside certain minimum and maximum duration limits. It is used mainly as a commissioning

charge after installation, a corrective equalizing charge, a preparation charge before a capacity test, or a refresh charge during

long storage period

During charge, the battery temperature must be continuously monitored. If the battery temperature exceeds 45°C, the charge will

be interrupted until the battery cools down.

Case 1) With external charger of IU - characteristic. For the commissioning charge the current must be limited to 1*I10 Amps.

Table 1, Case 1

Case 2) With external charger of IUI or I - characteristic. Using an IUI or I charger that can charge the battery with constant current

at elevated voltage, higher than 2.60Vpc up to 2.80Vpc.

Table 2, Case 2

Battery Temperature Voltage Settings

Minimum and Maximum

Charging Times

Full Charge Criteria

0 - 10°C 2.38 - 2.45V 48 - 72h

When the individual cell

voltages have not risen

for a period of 4 hours

15 - 30°C 2.35 - 2.40V 36 - 72h

30 - 40°C 2.32 - 2.35V 24 - 48h

Bulk Charge Current

Limitation

Voltage Settings for

U-Phase

Gassing Charge Current

Limitation

Minimum and Maximum

Charging Times at

Gassing Phase

Full Charge Criteria

2.0*I10 2.33 - 2.40V

0.12*I10 (1.2A per 100Ah

Nominal Capacity)

5 - 8h

When the individual

cell voltages have not

risen for a period of 1

hour

Operation

181-411-B0-001, Rev. A (08/2015)

Case 3) Using the solar controller. Connect the battery to the controller and leave it for 1-2 weeks while the application load is

disconnected. Full charge criteria are not applicable here. Use the following voltage settings:

Table 3, Case 3

Equalizing

Functional Equalizing

During a cycling operation, the target is to achieve an almost complete recharge (100% state of charge) after every discharge

cycle, otherwise a permanent capacity decrease will threaten the battery’s service life. This is not always possible in stand-alone

applications where the RES source depends on the weather conditions. A scheduled (functional) equalizing charge should be

given at regular intervals to protect the battery from sulphation and lagging cells.

» Equalizing frequency is adjusted according to the charge decit. The less complete the daily recharge is, the more

frequent the equalizing is required.

» The charge duration is xed.

» The voltage settings are the same values used for a normal recharge.

Corrective Equalizing

Equalizing charges are also required after incidents of excessive stress for the battery (deep discharges with inadequate charges)

or when the individual cell or bloc voltages show excessive deviation from the average (lagging cells and sulphation problems).

Should the voltage in individual cells/bloc deviate from the average value more than the following limits, perform an equalizing

charge:

Table 4, Battery State Deviation

Corrective Equalizing is performed as a Full Charge

If the voltages are still out of the limits, contact an OutBack Power technical support representative.

Battery State 2V Cells

Floating, after the rst 6 months of operations -0.1V / +0.2V

At end of normal charge, while the current is

stable, after the rst 6 months of operation

-0.2V / +0.35V

During discharge, while Depth-of-Discharge

is between 5 and 20%

±0.04V

During discharge, while Depth-of-Discharge

is between 20 and 60%

±0.06V

At rest, 24h after a functional equalizing

charge

±0.025V

On-O Controllers -20 - 0°C 0 - 35°C >35°C

High Disconnect Voltage (Vr) 2.55V 2.45V 2.40V

Low Restart Voltage (Vrr) 2.35V 2.30V 2.25V

Constant Voltage Controllers -20 to 0°C 0 - 35°C >35°C

Regulation Voltage (Vr) 2.45V 2.37V 2.33V

Operation

181-411-B0-001, Rev. A (08/2015)

Normal Operation Charging

The following charging voltage settings are optimum values, so the battery is not heavily undercharged or overcharged. A good

indicator to check this, is the percent of overcharge per cycle (charging factor) within a long period of operation (a month to a

year). Deviations from these charging factors signals the user to check the charging settings and the overall system operation:

» >107% for Stand-alone systems with maximum daily depth-of-discharge less than 5%

» 105% to 110% for Stand-alone systems with maximum daily depth-of-discharge more than 5%

Settings for Stand-Alone Systems

The settings shall be adjusted according to battery temperature. Temperatures are averaged over one month:

Table 5, Settings for Stand-Alone Systems

For systems with oversized PV array and low maximum daily depth-of-discharge (<5%), use lower settings. Functional equalizing

charges are required in periods with marginal “Array to Load ratio” (less than 1.3). Typical frequency is 1 to 6 times per year.

Table 6, Functional Equalizing Frequency

A functional equalizing lasts 24 hours with voltage settings the same as above.

Controller Type Setting -20 - 0°C 0 - 15°C 15 - 35°C >35°C

Constant Voltage

One Step

Vr 2.50V 2.45V 2.40V 2.35V

Constant Voltage

Two Steps

Absorption Maximum

2h per Day

2.55V 2.50V 2.45V 2.40V

Float 2.45V 2.40V 2.35V 2.30V

On - O

High Voltage (Vr) 2.55V 2.50V 2.45V 2.40V

Low Voltage (Vrr) 2.35V 2.30V 2.30V 2.25V

Absorption Time 4 - 6h 6 - 8h 8 - 10h 10 - 12h

Equalizing Every 7 Cycles 14 Cycles 21 Cycles 28 Cycles

If One Cycle = One Day One Week Two Weeks Three Weeks Four Weeks

Operation

181-411-B0-001, Rev. A (08/2015)

Discharging

No restriction on the discharge current is required, provided the connections are properly sized and the battery temperature stays

within the allowable limits.

For discharge rates lower than I10, the maximum daily depth-of-discharge is expressed as a percentage of the C10 DIN value.

The maximum allowable depth-of-discharge (MDOD) is 80% of the maximum available capacity, for all systems unless otherwise

approved by OutBack Power.

Overdischarge Protection

The MDOD limit control should not be implemented solely through control systems based on Ah-counters. Monitoring the battery

voltage against the low-voltage disconnect setting should always be included. The maximum daily depth-of-discharge limit

control - for hybrid applications - can be measured either by Ah-counters control units or/and by battery voltage monitoring.

The graphs at the end of this manual give the battery voltage to depth-of-discharge relation as a guidance for the initial low

voltage disconnect settings (rst-try settings). The system designer or installer must adjust and conrm them according to the

actual conditions of the system. For systems where the voltage is measured at the controller and not on the battery, the voltage

drop on the connections to the battery must be considered.

For critical systems with the load directly connected on the battery, an alarm or other method of user feedback must be included

to give information on the battery status when depth-of-discharge exceeds 60 to 80%.

Low-voltage Reconnect for Stand-Alone Systems

The battery voltage at which the load is reconnected after a low-voltage disconnect must be above 2.2 Vpc.

Operation

181-411-B0-001, Rev. A (08/2015)

Temperature Limits

All technical data applies to the nominal temperature of 25°C. The ideal operating temperature range is 25°C ± 5°K. The

recommended operating temperature range is 15°C to 35°C. Higher temperatures reduce the working life. A maximum

temperature of 45°C must not be exceeded. In hybrid applications, the yearly average of battery temperature should be less than

30°C. Subzero temperatures may cause electrolyte freezing and irreversible damage when the battery’s state of charge is low. The

minimum safe temperature versus state of charge is given below:

Table 7, Minimum Safe Temperature

The system designer/installer should consider countermeasures like thermal insulation, increasing the battery capacity, or

increasing the minimum system voltage. In stand-alone systems, it is recommended to use controllers with adjustable low voltage

disconnect setting to the battery temperature (higher low voltage disconnect for lower temperature).

During operation the temperature dierence between individual cells/blocks battery should be below 3°C.

Current Limits

The maximum charging current during the bulk charging is 3*I10, while the battery voltage is below the gassing voltage of 2.40V

x number of cells.

Ripple Currents

During recharging up to 2.40 V/cell, the eective value of the AC ripple current may temporarily reach maximum 10A/100 Ah C10

nominal capacity. After recharging and at oat charge in stand-by operation or buer operation, the eective value of the AC

ripple current must not exceed 5A /100 Ah C10 nominal capacity.

SoC (% to C10 - DIN value) 0 - 20% 20 - 40% 40 - 60% 60 - 80%

Freezing Point -40°C -30°C -20°C -15°C

Battery Maintenance

181-411-B0-001, Rev. A (08/2015)

Battery Maintenance

To avoid leakage currents and the associated risk of re, keep the battery dry and clean. Clean with clear water; do not use any

solvents or detergents as they can cause permanent damage to the container and lid. Avoid electrostatic charges.

Measure and record the following parameters every 6 months:

» Battery voltage

» Voltage of some cells/bloc batteries (pilot cells)

» Temperature of the container in some cells/bloc batteries (pilot cells)

» Conrm daily depth-of-discharge per cell

» Conrm max depth-of-discharge per cell does not exceed the allowed limit

» Conrm charging factor is within acceptable limits

» Conrm that charge settings correspond to the recommended ones

» Check if corrective equalizing is applied

Measure and record the following parameters every 12 months:

» Voltages and temperatures in all cells/blocks

» Connectors, racks and the ventilation

Faults / Testing / Storage / Transport

181-411-B0-001, Rev. A (08/2015)

Faults

Should faults be detected in the battery or the charging device, contact an OutBack Power technical support representative.

Measured data will simplify fault detection and elimination. A service contract with OutBack Power will detect faults in time.

Testing

Tests must be conducted according to IEC 60896-21. Check that the battery is fully charged. Before testing new batteries it must

be ensured that a sucient commissioning charge has been applied and the battery is fully charged.

Taking Out of Operation / Storage

If lled lead acid accumulators are to be taken out of operation for a longer period of time, they must be placed fully charged in a

dry, frost-free room. To avoid damage, periodical equalizing charging or permanent oat charging must be conducted.

Transport

EnergyCell OPzV cells/monoblocks are protected against short-circuiting. If properly packed, batteries are not dangerous goods

according to the international regulations for dangerous goods on road and on rail (ADR and RID).

Performance Curves

181-411-B0-001, Rev. A (08/2015)

Performance Curves

Figure 1, Expected Number of Cycles vs Depth of Discharge

DoD %

Number of Cycles

0% 10% 20% 30% 40% 50% 60% 70% 80%

8000

7000

6000

5000

4000

3000

2000

1000

RES OPzV 2V Cells

Performance Curves

181-411-B0-001, Rev. A (08/2015)

Figure 2, Guidance for the Initial Low-Voltage Disconnect Settings (25°C Reference Temperature)

» The minimum voltage, for standby use, represents the maximum available

capacity.

» The minimum voltage, for solar use, represents 80% of the maximum available

capacity. It is the lower low voltage disconnect setting except in special

applications and after OutBack Power’s approval.

» The depth of discharge 60% line, represents the minimum voltage setting to

control the end of each discharge voltage in hybrid applications. It’s always

recommended to implement a supplementary control by Ah counter.

Note:

RES OPzV 2V Cells

0 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150

Battery Voltage (Vpc)

2.10

2.05

2.00

1.95

1.90

1.85

1.80

1.75

Extracted Amperhours per 100Ah of C10 DIN

DoD20%

DoD30%

DoD40%

DoD50%

DoD60%

DoD70%

DoD80%

DoD90%

DoD100%

Minimum for Solar Use

Rates in Amps per

100AhC10DIN

Minimum for Standby Use

The Battery Cannot

Operate Here

Restricted Use

Performance Curves

181-411-B0-001, Rev. A (08/2015)

Figure 3, Self-Discharge Characteristics

Residual capacity (%)

Storage time (months)

0 5 10 15 20 25

120%

100%

80%

60%

40%

20%

RES OPzV Cells

Performance Curves

181-411-B0-001, Rev. A (08/2015)

Figure 4, EnergyCell OPzV Cycle Life

Figure 5, EnergyCell OPzV Capacity vs. Temperature Chart (Rate = 120Hr/1.85VPC)

-10

-5

201510

110%

105%

100%

95%

90%

85%

80%

Temperature (°C)

Available Capacity (% @ 25°C)

Number of Cycles

8000

7000

6000

5000

4000

3000

2000

1000

Depth of Discharge (%)

Technical Specications

181-411-B0-001, Rev. A (08/2015)

Technical Specications

Table 8, Performance Data - Discharge Constant Current at 20°C (Amperes)

Performance Data - Discharge Constant Current at 20°C (Amperes)

End Voltage 2.00V/cell

10h 12h 20h 24h 48h 50h 72h 100h 120h 168h 240h

EnergyCell

OPzV 450

14.73 12.98 8.99 7.86 4.59 4.45 3.30 2.51 2.12 1.55 1.10

EnergyCell

OPzV 750

22.92 20.37 14.42 12.69 7.61 7.38 5.53 4.25 3.61 2.68 1.93

EnergyCell

OPzV 2000

55.71 49.80 35.82 31.69 19.37 18.77 14.21 10.91 9.37 6.99 5.13

EnergyCell

OPzV 3000

87.52 77.93 55.41 48.83 29.37 28.46 21.37 16.29 13.90 10.24 7.23

End Voltage 1.92V/cell

10h 12h 20h 24h 48h 50h 72h 100h 120h 168h 240h

EnergyCell

OPzV 450

25.17 21.86 14.54 12.52 6.99 6.75 4.92 3.67 3.11 2.29 1.63

EnergyCell

OPzV 750

41.02 35.80 24.10 20.84 11.81 11.41 8.37 6.29 5.35 3.95 2.85

EnergyCell

OPzV 2000

98.74 86.50 58.80 51.02 29.27 28.30 20.90 15.79 13.48 9.99 7.20

EnergyCell

OPzV 3000

155.28 135.59 91.31 78.96 44.70 43.19 31.66 23.77 20.22 14.91 10.71

End Voltage 1.90V/cell

10h 12h 20h 24h 48h 50h 72h 100h 120h 168h 240h

EnergyCell

OPzV 450

27.17 23.55 15.59 13.40 7.44 7.18 5.22 3.89 3.29 2.41 1.72

EnergyCell

OPzV 750

44.62 38.85 25.99 22.42 12.60 12.17 8.90 6.67 5.67 4.18 3.00

EnergyCell

OPzV 2000

107.56 93.95 63.37 54.84 31.17 30.12 22.16 16.69 14.22 10.52 7.57

EnergyCell

OPzV 3000

169.03 147.19 98.41 84.88 47.63 46.00 33.59 25.15 21.36 15.72 11.26

End Voltage 1.85V/cell

10h 12h 20h 24h 48h 50h 72h 100h 120h 168h 240h

EnergyCell

OPzV 450

31.09 26.87 17.64 15.13 8.31 8.01 5.79 4.29 3.63 2.65 1.88

EnergyCell

OPzV 750

51.82 44.93 29.74 25.57 14.18 13.69 9.94 7.40 6.27 4.60 3.29

EnergyCell

OPzV 2000

125.49 109.02 72.54 62.49 34.94 33.74 24.61 18.42 15.64 11.50 8.23

EnergyCell

OPzV 3000

196.84 170.58 112.62 96.73 53.43 51.56 37.37 27.80 23.53 17.23 12.29

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OutBack Power EnergyCell OPzV Owner's manual

Brand: OutBack Power

Model: EnergyCell OPzV

Type: Owner's manual

OutBack Power EnergyCell OPzV is suitable for use in a wide range of applications, including:

Renewable energy systems
Uninterruptible power supplies (UPS)
Off-grid systems
Telecom systems
Industrial applications

The EnergyCell OPzV is a durable and reliable battery that can provide years of service. It is backed by a 10-year warranty.

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OutBack Power EnergyCell OPzV Owner's manual

OutBack Power EnergyCell OPzV Owner's manual

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